Calculating columns sizes based on the character set in mysql client

[yurriy]

Currently, print_table_data calculates the size of the column as a length of its longest value in bytes (or of its name, if it is longer).
This results in output with additional spaces for multibyte strings. (for utf8, a column can be 2-4 times larger than its longest value).
In this patch column size is calculated based on the character set which client uses.

How to reproduce:
select 'ⲫ' as x;
Output:

+-----+
| x   |
+-----+
| ⲫ   |
+-----+

Expected output:

+---+
| x |
+---+
| ⲫ |
+---+

[mysql-oca-bot]

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Thanks

[mysql-oca-bot]

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Thanks

[yurriy]

I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.

[mysql-oca-bot]

Hi, thank you for your contribution. Your code has been assigned to an internal queue. Please follow
bug http://bugs.mysql.com/bug.php?id=95550 for updates.
Thanks